Ethyl 6-chloro-3-(chloromethyl)-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 5-chloro-3-hydroxy-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-chloro-5-hydroxy-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-chloro-5-hydroxy-2-(trifluoromethoxy)pyridine-6-acetate